GRAND RAPIDS, MI — Two men were stabbed downtown, a woman was shot on South Division Avenue and another woman was seriously injured by unknown means in separate overnight incidents under investigation by Grand Rapids police.

The busy night for investigators started around midnight at the corner of Wealthy Street and Charles Avenue SE, where police said a woman in her mid-50s was found lying in the street with serious head and facial injuries.

Grand Rapids Lt. John Bylsma said officers canvassed the immediate area, but found no suspects in what police are investigating as a crime.

Officers have not yet been able to speak to the woman, who is in serious condition at the hospital, Bylsma said. It’s unclear exactly how she was injured.

The woman, in her mid-20s, was shot in the arm while leaving a nearby business, Bylsma said. She was driven to the hospital and her injury is not life-threatening. Investigators have not identified any suspects.

Roughly 15 minutes later, about 1:30 a.m., two men were stabbed near the corner of South Division and Oakes Street downtown, Bylsma said.

The men, in their mid-20s, received multiple cuts and stab wounds to their upper torsos after getting into a fight with a group that approached them. The men were taken to the hospital by an ambulance. Their injuries are not life-threatening.